THERMODYNAMIC MODELLING MODULE OF BOILER SOOT BLOWER CONTROL SYSTEM

摘要

PURPOSE: A thermodynamic modelling module of a boiler soot blower control system is provided to deduce a contamination level on the basis of the thermodynamic modelling module for the optimum operation of the soot boiler and precisely compose a control amount of the soot blower according to the deduction. CONSTITUTION: A thermodynamic modelling module of a boiler soot blower control system includes a computation part(52) for operating a signal obtained by sensing a vapor amount discharged from a drum of a boiler, a thermal absorptivity computation part(54) of a fuel economizer, for operating a thermal absorptivity according to a signal transmitted from a sensor disposed in the boiler, a gas temperature computation part(56) for measuring a temperature of combustion gas by a sensor disposed at an outlet part of the boiler, and a contamination level computation part(58) for determining whether the operation values of the above computation parts deviate preset reference ranges by comparing with reference values.